Fuel mixing and feeding device



Oct. 29, 1929. s. G. BRINKMAN v FUEL MIXING AND FEEDING DEVICE Filed March 27, 1928 ry z ATTORNEY Patented Oct. 29, 1929 UNITED STATES SEBASTIAN G. BRINKMAN, OF PERTH AMBOY, NEW JERSEY FUEL IvIIXING AND FEEDIL G DEVICE Application filed March 27, 1928.

This invention relates to improvements in fuel feeding and carbureting means for internal combustion engines, and more particularly to a fuel mixing and feeding device 5 which will be located in the fuel tank of an automobile or motor vehicle.

An object of the invention is to provide an improved fuel mixing and feeding device for delivering fuel to an internal combustion engine in a high state of aeration, and which will be positioned in the fuel tank of an automobile, whereby the fuel in the tank will be positively fed to the carbureter of the engine without the use of the customary vac uum tank.

A further object of the invention is to provide a fuel mixing and feeding device adapted to be positioned in the fuel tank of an automobile to be used with my carbureter pat- 2 ented Nov. 16, 1926, and bearing Number 1,607,052, whereby the suction created in the carbureter will cause the fuel to travel a circuitous passage in the device and become thoroughly aerated in the mixing chamber of .5 the device, after which the aerated fuel will be fed into the carbureter, and there be further agitated and admixed with the air as it is delivered into the intake manifold of the engine.

A still further object of the invention is to provide an automatically priming fuel mixing and feeding device for positioning within the fuel tank of a motor vehicle, whereby a sufficient amount of fuel will always be in the 2, priming chamber or priming tube of the device for rotating the fly wheel and connected parts of an internal combustion engine several turns, after which, the suction from the functioning carbureter will cause the fuel to pass into the mixing device to be thoroughly aerated, after which process, it will be delivered to my improved carburetor without passing into and through a vacuum tank.

. Other objects will appear as the description proceeds.

In the accompanying drawings which form a part of my application,

Figure 1 is a side elevation of my improved fuel mixing and feeding device, showing the erial No. 265,149.

same in position within a fuel tank illustrated in section;

Figure 2 is a vertical sectional view taken through my improved fuel mixing and feedlng device;

Figure 3 is a sectional view taken on the line 33 of Figure 1;

Figure & is a diagrammatic showing of a motor vehicle equipped with my fuel mixing and feeding device.

Like characters of reference are used throughout the following specification and the accompanying drawings to designate corresponding parts.

My improved fuel mixing and feeding de vice comprises an inner or priming tube 1, which is adapted to be threaded into the upper end of an elbow 2, which in turn is threaded through the bottom of a fuel tank 3, and an outer or mixing tube 4, spaced from said tube 1.

The priming tube 1 is provided with a small port 5 extending through it adjacent its lower end, and permits fuel to pass slowly therethrough and to fill the tube to the level of the fuel in the fuel tank 3, when the internal combustion engine attached to the device is at rest.

The opposite ends of the mixing tube 4 are flared outwardly, there being formed a mixing chamber 6 in the upper end, which extends a considerable distance above the upper end of the inner tube 1. A washer 7 provided with a plurality of annularly disposed ports 8 is positioned about the upper end of the tube 1 between the same and the mixing tube 4:, at the base of the mixing chamber 6, while a similarly constructed washer 9 provided with ports 10 is removably held about the tube 1 between the same and-the flanged lower end of the tube 4, as clearly illustrated in Figure 2 of the drawings. It will be apparent that the lower end of the tube 4 does not extend down to the bottom of the tank, but is spaced a little distance from the bottom thereof.

The upper end of the mixing chamber 6 in the mixing tube 4:, is closed by a removable cover cap 11 threaded into the open end thereof, and supports a tube 12, hereinafter termed an air inlet tube, which is provided with an air inlet port 13. A valve stem 14 is threaded into the upper end of the air inlet tube, and is adapted to control the amount of air passing into the same. A hexagonal head 15 is formed on the upper end of the valve stem 14, to be engaged by a wrench for adjustment. The nut 16 is threaded onto the upper end of the air inlet tube 12,- and when screwed down against the upper surface of the tank 3, holds the apparatus in rigid position. A pipe line 17 connects the elbow 2 with the carbureter 18.

The operation of my improved fuel mixing and feeding device will now be explained in detail. Assuming that the fuel tank 3 is half full of fuel, as illustrated in Figure 1 of the drawings, it will be apparent that the fuel will seep into the tubes 1 and 4, through the openings or'ports 5 and 10, respectively, until the level of the fuel in the said tubes is the same as the level of the fuel in the tank 3. The pipe line 17 will always be full of fuel. whether the engine is running or idle, and when the engine is started, the first few revolutionsthereof will draw the fuel from the tube 1 down through the elbow 2 and into the pipe line 17 The suction created by the engine when running, will then suck the fuel up through the ports 10 in the washer 9, and through the ports 8 in the washer 7, into the mixing chamber 6, where air entering the port 13in the air inlet tube 12, will mix with the fuel, aerating the same until it is finely broken up, after which, in this state, it is drawn through the tube 1, elbow 2, and pipe line 17, to the carbureter, where it will receive another additional carbureting action prior to its entry to the intake manifold of the engine.

This action of the mixing and feeding device will be continuous, as long as the engine is running, but when the engine is idle, the fuel in the tubes 1 and 4, will again fill up to the level of the fuel in the tank, ready for instant starting of the engine.

It will be seen that with my improved fuel mixing and feeding device attached to my patented carbureter, there will be absolutely no use for the usualtype of vacuum tank to draw the fuel from the fuel tank to the carbureter.

Many minor changes in detail of construction may be resorted to without departure from the spirit of the invention.

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is: v

1. A fuel mixing and feeding device for fuel tanks comprising a pair of spaced concentrically arranged tubes, spaced washers interposed between said tubes adjacent the ends thereof and provided with annul'arly disosed fuel Jassa es. a mixin chamber formed 21 z:

in the upper end of the outer tube, and valve cont-rolled means for admitting air to said mixing chamber.

2. A fuel mixing and feeding device for fuel tanks comprising a pair of spaced concentrically arranged tubes, the outer of said tubes being belled at its opposite ends, spaced washers positioned about the inner tube and seating in the belled portions of the outer tube, said washers being provided with a plurality of annularly disposed fuel passages, a mixing chamber formed in the upper end of the outer tube, means for closing the upper end of said outer tube, and valve controlled means supported by said last mentioned {)neans for admitting air to said mixing cham- 3. A fuel mixing and feeding device for fuel tanks comprising a pair of spaced concentrically arranged tubes, the outer of said tubes being belled at its opposite ends, spaced washers positioned about the inner tube and seating in the belled portions of the outer tube, said washers being provided with a plurality of annularly disposed fuel passages, a mixing chamber formed in the upper end of the outer tube, means for closing the upper end of said outer tube, V, valve controlledmeans supported by said last mentioned means for admitting air to said mixing chamher, and a fuel inlet in the inner tube below the bottom of said outer tube.

l. A fuel mixing and feeding device for fuel tanks comprising concentrically arranged inner and outer tubes, means for admitting fuel directly into each of said tubes, the means for admitting fuel to the outer tube being larger than the means for admitting fuel to the smaller tube, a mixing chamber formed in the outer tube above the upper end of said inner tube, a ported air admission tube connected wit-h said mixing chamber, and means for varying the effective area of said port.

In testimony whereof I affix my signature.

SEBASTIAN G. BRINKMAN.

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